>tr|A0A0H3PVW3|A0A0H3PVW3_ECO5C Aspartate carbamoyltransferase regulatory chain OS=Escherichia coli O157:H7 GN=pyrI MTHDNKLQVEAIKRGTVIDHIPAQIGFKLLSLFKLTETDQRITIGLNLPSGEMGRKDLIK IENTFLSEDQVDQLALYAPQATVNRIDNYEVVGKSRPSLPERIDNVLVCPNSNCISHAEP VSSSFAVRKRANDIALKCKYCEKEFSHNVVLAN